Unable to Launch IIS Express Web Server - VS 2015 Community
If you are working with .NET core/ASP.NET core application then please make sure you have installed these-
.NET Core SDK
VS 2015 Tooling Preview 2
If it is appeared to be solution-specific then-
Look for applicationhost.config file at
<solution-name>\.vs\config\applicationhost.config
locationTry removing this file and run solution again.
See if this helps.
Felipe
I am a software developer who wore many hats over the years. I worked with a lot of different technologies and I love to keep on learning new and exciting stuff!
Updated on June 27, 2022Comments
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Felipe almost 2 years
I am developing a web project and I am not being able to test it using the IIS Express from the Visual Studio 2015.
I have googled this error and I found many references to it on the internet, but I believe that my case is different, because there is no other error message displayed besides "Unable to Launch IIS Express Web Server".
I've looked at the Windows Event Viewer and I got these errors below:
The worker process failed to initialize correctly and therefore could not be started. The data is the error. The Module DLL C:\Program Files (x86)\IIS Express\aspnetcore.dll failed to load. The data is the error.
I also tried to launch the IIS Express directly using:
c:\Program Files (x86)\IIS Express>iisexpress.exe /trace:error
and I was successfull, so I think that the problem must be somewhere within Visual Studio and that my port (8080) is free.Does anyone knows what else I can do?
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Felipe over 7 yearsHi, everything started working once Visual Studio was updated. Thanks for the help!
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Vijendra Ram S over 6 yearsTo save time I removed ".vs" folder and it worked ;)